Achomosphaera |
Achomosphaera membraniphora
|
|
Middle Cretaceous |
|
Achomosphaera |
Achomosphaera ramulifera
|
|
Middle Cretaceous |
|
Achomosphaera |
Achomosphaera reticulata
|
|
Middle Cretaceous |
|
Achomosphaera |
Achomosphaera sagena
|
|
Middle Cretaceous |
|
Bacchidinium |
Bacchidinium polypes
|
|
Middle Cretaceous |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
|
Middle Cretaceous |
|
Canningia |
Canningia colliveri
|
|
Middle Cretaceous |
|
Canningia |
Canningia minor
|
|
Middle Cretaceous |
|
Chlamydophorella |
Chlamydophorella nyei
|
|
Middle Cretaceous |
|
Cleistosphaeridium |
Cleistosphaeridium aciculare
|
|
Middle Cretaceous |
|
Cleistosphaeridium |
Cleistosphaeridium ancoriferum
|
|
Middle Cretaceous |
|
Cometodinium |
Cometodinium obscurum
|
|
Middle Cretaceous |
|
Coronifera |
Coronifera oceanica
|
|
Middle Cretaceous |
|
Cribroperidinium |
Cribroperidinium edwardsii
|
|
Middle Cretaceous |
|
Cribroperidinium |
Cribroperidinium exilicristatum
|
|
Middle Cretaceous |
|
Cribroperidinium |
Cribroperidinium sepimentum
|
|
Middle Cretaceous |
|
Cyclonephelium |
Cyclonephelium distinctum
|
|
Middle Cretaceous |
|